Dump car



April 30, 1929. J. o. NEIKIRK DUMP CAR Filed Aug. 5, '1925 2Sheets-Sheet lllllmwlll,

April 30, 1929. J. o. NIKIRK 1,710,889

DUMP CAR Filed Aug. 5, 1925 2 Sheets-Sheet 2 il Il Y."

Um @NSM/6,',

Patented Apr. 30, "1929.

UNITED STATES PATENT''F'Flcg JOHN o. rimarcare` oFILoMBARD, niisriaoisyAssmNon `:ro RonGR-KBALLAS'L" om; domi" YPam?, or CHICAGO, ILLINOIS, A"coRroRATxoN or Maman DUMP can.

Application filed August 5, lszsnserial No. 48,213".4v 'y A further ob]eet is to provide controlIfineeh.r

auism for railway dump cars so, designed that both assembly andoperation are simplified. A 'further objectis to provide a detentmechanism having a unitary mounting for Vcontrolling the openingmovement `of theV dumpinpY mechanism of railway dump ears, whichdetentmechanism is applicable to said dumping mechanism throughout anextended region, whereby said detent mechanism may be convenientlyloeatedu Further objects will" appear as Vthe description proceeds.

The present invention constitutesfaniin-- provement over applieantsprior Patents No.

1537415516, granted April 1:2, 1921and No.A

141528,65@ granted kSepteinber l2," A Referring to the drawingsl Figurel is a fragmentary viewin side elellt) ration of a railway dumpcarembodying thel princi ples of "the Vpresent invention;

Figure 2 is a sectional view taken along the plane indicated b fthearrows 2&2 of Figurel; y 'f Fig-ure 3 isa sectional :fragmentary View ytaken along the plane indicated by the arrows 40 2lf3 or' Figure 15 lFiglne fl is a fragmentary seetional View.

falten along' the plane indicated by the arrows -l-. ot Figure l;

lf" ire 5 a fragmentary view on an enscale of the .structure shown inFigure l; L f

Figure 6 is a view ot the structure shown in lfigure` said view beingtaken in the direetion ot the arrow 6 of. Figure 5; and 1 Figure T isasectional view taken along the plane indiea'tedjby the arrows T-fofFigure 6. i

A The numeral indicates a railwayduinp indicated by the Wheels 11-Locatedl between the trucksis certain fdumpf car mounted `upon trucks,iwhich trucks are i hereof.

ing mechanism indicated ,as a whole by the numerald The bodyotthe car is`provided' with the iside WallsA 13474113; which may be' stifl'ened by.`means 'of the stakes, 1144-14: `At e()` the ends of the cai' arefslopingfloors 15 adaptedto direet .lading the i mechanism 12. 1

Mounted longitudinally ofthe car the center sill structure indicated` asa whole the nun-ieral i6.A Said vcenter sill 4strnetnre` is providedxvitlrthe` cope" 17 adapted "to shed L lading to the two si'desfofsaid-centerjsill structure. also l provided with the outwardly fsloing"Said center sillstructure'kv walls of the `two hoppers1l9-l9 intoVWhieh.

the caris divided byftlieg-fenter sillStl'UCture 16. Disposed adjaeenttothe side Walls 13-413 are the inwardly sloping rwalls20s-20.

The spacel between each" outwardlyslopingf Vy wall 18 and theorre'sljonding inwardlysloliiingwally 20 of 'each hopper'll) is closedbya 7 i door 21; Said doors 21j-21am swingingly* mounted upon theshafts' QQ-f-QQQeXtending longitudinally of thecar Whieli shafts 22%22are supported by eertain are composite structures `the shaping`walled-8748. Saiddoors-01f-la y are controlled in their '.,Swingingmovement about the axes olf shafts 2Q-22h57 linknieehanism indicatedWholei numeral 2&3 `Said flinknieelianisni 2 trolled `by the rot i i 2be rotatedby'.anl f lustratedl.` f Y Rotat nfoffthefshaft i i directionwillresu y of the demis'QI-#Qlswingingif (ilboutt'he axes of theshaftsZQ-TQQ Rotation ofthe shaft y `atlsets, which willberejferr'edjtoliereinz'rfter. f "Said oors214-721lv l" eXtend y to" regions inwardlyof the lowerextremitiesof e lt in (mening mow nient l Y 95 rl-'l in the'opposite diretion will result in the closing movement offsaid. doors21T-#21.ffr'llhe doors 21-Q1 arepro'viddf:with interniediatel doors 25,whicharelswinginglymounted upon the longitudinallydisposeillshafts]-2113-26,l

which shafts 26-,f26 flieliniL pronimit loweregc'trei'nitfies"ofthe;outwardly` floors 18u18.Swingingdfitlieinterinediatk;

doors 25 Yis i controlled llovt-he ngnudmal disposedshafts@ othereio yLle() which are located adjacent to the longitudinal extremities ot thedumping mechanism Brackets 30 a realso vproviiled ilor supporting theshafts 27-27 intermediate oit their' lengths. The brackets and 30 inajybe castings and are riveted or otherwise secured to the under frame olthe car, including the cross tie 30.` Said brackets preferably serve notonly as supporting means for the sh .ft 27H27, but provide bearings forthe shane 22H22 1which pivotally sup port the swinging doors 2l. Saidbrackets serve also as strengthening nieansfor the sloping Walls 2O andthe sides of the car7 being riveted or o therwise secured to saidsloping Walls @Q -20, side Walls l3-l3 and stakes lil-ll as indicated bylthenumeral 3( Then non-round shafts ily-2T are used, in order that theymay have proper bearing in the brackets 29 and 3Q, bushings willpreferably be provided having circular peripheries lorrotation incirciunt-erential seats Within the bracketsQSl and 30. Bnshings suitablefor the purpose are indicated by the numeral 3l in Figure 3. Theintermediate brackets Sli-f3() will preti erably have slotted aperturesS2-32, the longer ailes of said apertnres 32--82 being verticallyarranged. By reason of the slotted construction ol' the brackets 30 30the inatter of assembly is greatly facilitated, inasmuch as it willfrequently be found that the Shafts 2T*27 are not perfectly straight.will he noted from an inspection et Figure 2, the extren'iities of thecrosstie 30 are cut away on the under side to allow space tor shafts 27and the bushings 2:31.. The cross tie 30( will ndinarily take the fornioll a: llangcd beam having a web. `In order to strengthen the cross lie30 at the extremities thereof, the brackets 30m-3.30 are provided withopstanding tlanges S25-33. which are c-nlcured to the web o'f the crosstie `530". Chain guides Bslll a re secured. upon the shatts i3-:27 ttorinsuring smooth operation ol" said'chains.

ln order lo move the il'erinediate doors 2:3--25 troni their open` Ilositioxu-i toward closing position, ratchet mechanism is provided foroperating the shafts :2l-27. which ratchet mechanism is indicated by thenumeral 235. Said ratchet mechanism does not constitute the Vpresentinvention and need notV be doseribed in `detail herein. It will besullicient to state that each of the ratchet mechanisms includes a.ratchet pinion 3G secure l to the cori the responding shaft Q7. l-rlever3l' is provided Oscillating having an ope ating dog 553. movement of thlever 37 Will cause the dog 38 to engage the ratchet pinion 3G tocoinniunicate rotary niotion to the corresponding shaft lllhen theratchet mechanism 55 is not being used, the lever arin l? is held ininoperative position Within a bracket 30T a locking member il0 beingprovided :tor this purpose. V'When the ratchet mechanism 35 isinoperative, said ratchet nir-xchanisin will not interfere with theopening ot the intermediate doors 25-25.

ln order to control the opening nimeincnt ol' the interni diate doors 255, certain detcnt ratchet mechanism is provided, which detent ratchetmechanism is indicated by the numeral ell. y Une ol' said detentmechanisms is provided l'or each side ol the car, and aldo-v scriptionot one will sutlice tor a description ot' both. Each detent ratchetmechanism al includes a detent wheel il?, which wheel l2 isnon-rotatably mounted upon its correspondingshattZT. Bushings areprovided, having axial apertures conforming to the cross sectionalcontour of the shalt 27 and halvino' circular peripheries. Theperipherics ofi said bushings 43 have bearings Within similaraperturesin the bracket or yoke all, which is riveted or otherwise secured to theunder frame ol the car. This bracket comprises two substantiallyparallel legs all and an att-aching member la from Whiclrthese legsentend. The detent wheel 4Q Virrt-h the bushings7 Which may be" usedwith a non-round shaft, as in the present disclosure, is mounted betweenthe legs lll While the dog fl'is pivot-alb7 mounted upon the ineinberdell. By this construction, the parts are held in proper"operativerelation regardless ot the location of the detent mechanism upon theshalt,`independent ot any lined part oit the canor other means forholding theni in this relation. lille present construction thus dillersmaterially from those shown in applica'nts prior patents hereinbciorerefcrred to. y y y y'llic dog lis provided with the axial aperturc lofor the rec aption of a bar by .means ol'` which an oscillating movementmay be connnunicatcd to the dog d5. 'lhc dog f; lies witiiin the overalldimensions of the car, so the tit infesents 11o projecting parts. y

lilac-h i" c .vhecl includes a pair ot side Walls Jil-ld which sidewalls are provided teeth itl-ele located in sl ggerod re latious ipabout the periphery oliA d wheels l2. hach olf the teeth dBu-lli isprovided with a lace l-Sllyiiig in a plan i ipproximatcly parw allel tothe anis ot the shalt Z2?. The opposite laces, bearing the numeralsoth-50, are inclii ad relative to the axis of the shalt 27.

ln order to insure the engagement ot' the teeth t8 48 with the extremityot' the dog le. each of sa id teeth LS is preferably ol such a dimensionthat it extends beyond the medial plane of the detent Wheel l2? that isto Sayrrelerring to Fig re 7, the teeth 48 should all lll() llll doo;will move said` dog ont ot obstructing relationsl'iip with each tooth 48in succession,

but will leave it in obstructing relationship` with theAezitrsiicceedingif tooth 48. VContinued oscillation of the dog 45 willtherefore result iii the step-hy-step openingJ of the intermediate doorsThe teeth 18a-4S are so disposed that when the detcnt wheel isbeingVrotated hy the ratchet mechanism 35, e.,

in the closingl movement of the corresponding d oor the beveled faces5'0-50 of the teeth sld-l will engage the end of the oscillating den 15.Inasmnch as the teeth A1B-48 are in sta-d ered relationship with oneanother, each succeeding; tooth 4S `(in the closingmovement ot thecorresponding door 25) will move the end ot' the doglll to one side orthe othen.

whereby said vdetent wheel 42 and 'conso qiiently the shalt 2T may berotated. Reverse movement ot each Vdetent wheel 42 will he stoppethhowever, hy reason of the engagement between the dog 45 and the 'lacesfl9--494 ot the teeth 48H48, which `faces t9-#419- are in approximatelyparallel relationship with the airis ot the shaft 2T.,

The tact should be noted that the bracket ell provides a unitarymounting1 for the dog 45 and the detcnt wheel 42, so that the danger otsaid doni and detent wheel getting ont of proper relationship with eachother is minir mixed. lfloreover,V this proper relationship isVmaintained regardless ot the positionof the liracliet eti axially ot theshatt 27. It will be noted that the bracket let .may 'be located at anypoint within substantially the whole length of sliatt 2T, permittingawide field of selection as to the location of said 'bracket 4l.

The present inventioi-i provides a sturdy structure whichri-idiices theVamoiint o'fkcyine4 to a minimum. which is simple to assemble and tooperatev1 aiidirhich promotes safety.

lhoiigi'h a preferred embodiment of the present in vention has beendescribed in dek tail` it will heelear that many modifications willoccur to those `skilled in the art. intended to cover all suchmodifications that tall within the appended claims.

TWhat is claimed is: i y

l. In a dump car, a swinging door, ashaft for operating `said door,detent 'mechanism upon said shaft for controlling the openingr movementof said dooi,` said detent` niechfjl 4 shaft,`: detent-mechanisnijnpionsaid lsluift heg` anism comprisinga Wheel having opposed It is" detentteeth arranged Iin staggered relationship, and a :dog positionedto abutsaid teeth insuccessionysaid teetheiitending across the medial planeetsaidfrwheel,wherebyzto'fin- 5j sure that said ldogfwill engage withsaidtef'etli in succession. during tliefopening moli ot' saiddooixm .l fl 2. In a `railwaysdninp car,l 1n- Vcombin t;

nent

a sloping bottom 'Wall forming part of afhop` l per, a dump door forlcontrolling said linpper, a shaft extending longittidinallyof said lcar :for controllingz'said door;` `a bracket pro-l vidingia bearingforsaidwshafti"anda cross tie, said crosstie having` ajfportionofoitscieti'einity cut away' tol provide space `for" said Y shaft,A said brackethaving a portionsecured to the web of saidcross tie ,and providingslip#`porting .means between vsaid cross Vtie and said sloping Wall.

3. In a railway damp car,` in`combiriatio/In4 a dump door, ashaft forcontrolling the opening movement ofsaid door under load, a detent wheelnon-rotatably moantedrnpon-{fs'aid sa i shaft, anda yoke member securedto said car l and embracing said detent wheel.A l 4. In a railwaydumpcar, in combination,

a'dumpdoor, a shaftl for controlling the opening movement of said dampdoor, 'ai-detent i a V.swinging 'dog adapted to be oscillated saidteetli'when saidwheel is rotated'inone direction and adapted to stopthemovements l oit said wheel when said `Wheel tends'lto move"-v in theopposite, directiony'said teeth extendingl wheel upon saidshafthavingioppositely presented detent teetharranged,infstaggeredfcincnmierential Y relationship` with one another,

succession' daring the opening ino'vement-l of i said door. y A ,i

5. In a railway dumpcaniin combination, a dnlnpdoonashaft-forycontrolling the ope ing;r `movemerrt of1 said; dnn'ipldoor, akdeten upon said shaft, saiddetentwheel"haring,

ferentia'l relationship witlixonejanotlie teeth extending" across `themedial p1 'y saidV wheel, anda swingingdog adaptedto loan abut. saidteeth in successiony 1n the`openjing*ifl movement of said doorA4and'adapted tabel cillated by said teeth in the elos'ingmovement;` i

oi said door.

(i. In a Vdnmpcar,l aiswinging door, shaft tor operating the said door,connectionsbe-.fH

tween said 'shaft and door,V abra-Chet having substantially parallellegs mounted upoirsai'd shaft, and detent meclianismiipon said shaft` lbetween said bracket legs` 7. In a dumpcar, a swinging dooraa shaft .toroperating the said door,A connections V'be- 1 tween said shaft and door,a bracket having substantially' parallel ulegsn'iountedupon-said esserei y tween sadbracket legs, saidbracket alsocomlegs, said bracketcomprisingr also :Lu attached pr'sng an attached member for securing themember for securing said bracket to a fixed 10 bracket to' a Xed part ofthe ear. part of the ear, and a swinging dog mounted 8'. In a dump ear,a swinging door, a shaft upon said attaehng member for engaging the 5for operating said door, connections `between said detent Wheel.

said shaftand door, a bracket having sub- Sgned atCheago,I11nos,thsSOthday o1 stantally parallel legs mounted upon said Ju1y,1925.

shaft, a detent wheel between said* parallel JOHN O. NEIKIRK.

